Epidemiological investigation of thalassemia in gestational age population of Dai nationality in Dehong Prefecture, Yunnan Province

doi:10.16352/j.issn.1001-6325.2022.10.1504

Basic & Clinical Medicine ›› 2022, Vol. 42 ›› Issue (10): 1504-1508.doi: 10.16352/j.issn.1001-6325.2022.10.1504

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Epidemiological investigation of thalassemia in gestational age population of Dai nationality in Dehong Prefecture, Yunnan Province

TENG Cong-cong¹, XU Yong-mei², TANG Shu-ping³, LI Yong⁴, YANG Yang⁵, LONG Lan¹, ZHANG Jie^5*

1. Department of Medical Genetics,the Affiliated Hospital of Medical School,Kunming University of Science and Technology, Kunming 650031;
2. Department of Laboratory Medicine; 3. Department of Obstetrics and Gynecology; 4. Department of Public Health Management,Dehong Maternity and Child Health Hospital,Dehong 678400;
5. Department of Medical Genetics, the First People's Hospital of Yunnan Province,Kunming 650032, China

Received:2021-09-14 Revised:2022-01-07 Online:2022-10-05 Published:2022-09-23
Contact: * kmzhjie@aliyun.com

Abstract

Abstract: Objective To investigate the gene carrying rate,gene mutation type and hematological characteristics of thalassemia in Dai nationality population of Dehong Prefecture, Yunnan Province. Methods A total of 591 Dai nationality gestational age population in Dehong were tested for thalassemia gene by next-generation sequencing technology. The sensitivity and specificity of the hemoglobin electrophoresis and blood routine tests were performed. Results A total of 289 cases (48.90%) were positive for thalassemia gene. Among them,231 cases were classified as α-thalassemia(39.09%) and 89 cases were β-thalassemia(15.06%). Five α-thalassemia genotypes and seven β-thalassemia genotypes were detected. For α-thalassemia, --^SEA showed comparatively lower values for MCV and MCH; α^CSα showed comparatively lower values for Hb A2 (P＜0.05). For the β-thalassemia,CD 26 (G＞A)had significantly lower Hb A values,and higher MCH values(P＜0.05). A new cut-off value for the thalassemia with the highest accuracy was proposed(MCV 83.55 fL,MCH 27.95 pg). Conclusions Thalassemia is common in Dai nationality population of Dehong. The most frequently identified types are －α^3.7 and CD 26 (G＞A).

Key words: thalassemia, Dai nationality, gene mutation, hematological characteristics, epidemiological investigation

CLC Number:

R394

TENG Cong-cong, XU Yong-mei, TANG Shu-ping, LI Yong, YANG Yang, LONG Lan, ZHANG Jie. Epidemiological investigation of thalassemia in gestational age population of Dai nationality in Dehong Prefecture, Yunnan Province[J]. Basic & Clinical Medicine, 2022, 42(10): 1504-1508.

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Epidemiological investigation of thalassemia in gestational age population of Dai nationality in Dehong Prefecture, Yunnan Province

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